CN107043146A - A kind of method that utilization cow dung prepares composite water disposal agent - Google Patents
A kind of method that utilization cow dung prepares composite water disposal agent Download PDFInfo
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- CN107043146A CN107043146A CN201710112198.6A CN201710112198A CN107043146A CN 107043146 A CN107043146 A CN 107043146A CN 201710112198 A CN201710112198 A CN 201710112198A CN 107043146 A CN107043146 A CN 107043146A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
- B01J2220/4887—Residues, wastes, e.g. garbage, municipal or industrial sludges, compost, animal manure; fly-ashes
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Treatment By Sorption (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A kind of method that utilization cow dung prepares composite water disposal agent, it is characterised in that this method comprises the following steps：Cow dung is taken, hydrogen peroxide, nano barium titanate calcium powder body and hydrochloric acid solution is added, heating obtains solid A and liquid A；Liquid A is mixed with excessive alumina-bearing material powder, heated, reaction to solution ph is 2, is filtered to remove solid, obtains transparency liquid B；Solid A is dried, carbonization-activation, obtain active based composite material of carbon；Active based composite material of carbon is crushed, is added in liquid B, the pH value of mixed liquor is adjusted with sodium hydroxide, aging is stood, obtains liquid composite water disposal agent.Each component in fully innoxious use cow dung of the invention, with reference to cheap high performance composite water disposal agent containing aluminium waste or raw material containing aluminium, is prepared for, technique is simple, twice laid, non-secondary pollution, with good economic benefit and environmental benefit.
Description
Technical field
The invention belongs to field of environmental technology, and in particular to a kind of method that utilization cow dung prepares composite water disposal agent.
Background technology
Ox is Herbivore, but in modern cowboying industry, is added to improve in the yield of meat milk, the feed of ox
Plus substantial amounts of high protein, rich in trace element nutritional ingredient, ox feed feed part nutriment be digested absorption, it is residual
Slag and a part of nutrients are excreted in the form of fecaluria.Cellulose, lignin, protein, various amino are rich in cow dung
Acid and some colloidal type materials, also containing heavy metals such as substantial amounts of copper and iron zinc, can also contain the harmful substances such as antibiotic sometimes.Pass
The composting process of system, can not make cow dung innoxious use.Zhong Chenghua etc. (patent of invention, application number 201310441414.3,
A kind of utilization cow dung prepares the new method of activated carbon) cow dung is dried, preparing cow dung with diammonium hydrogen phosphate catalysis high temperature carbonization lives
Property charcoal, this method, which prepares activated carbon, to be needed to dry cow dung, and the protein, amino acid and colloidal substance in cow dung fail sharp
With the impure height of activated carbon；Zou Wenjun (patent of invention, application number：201510764105.9, one kind is biological based on modified cow dung
The food and drink waste water inorganic agent and preparation method of charcoal) using the mayenite water treatment agent, palm fibre oil, chitosan micro emulsion of layer structure
14 kinds of additives such as liquid, modified lipophilic lotus leaf fiber, pearl white, polyethylene glycol are activated carbon modified to cow dung, are prepared for food and drink
Waste water treating agent, this method additive is excessive, and does not make full use of the various colloidal substances in cow dung；Peng Jiangchen and Rui Xu
Graceful (patent of invention, application number：201210482387.X, a kind of method that utilization cow dung makes flocculation aid；Application number：
201210484952.6, a kind of method that utilization sheep manure makes flocculation aid) it will air-dry after cow dung or fermentation process after clearing up
Sheep manure extracted with triethanolamine, add acrylic acid solution and acrylic ester solution and formaldehyde to be prepared for water process solidifying with helping
Although agent, this method has obtained water treatment agent, but could not for content in cow dung and sheep manure very high cellulose and lignin
Make full use of, while the water treatment agent prepared contains the poisonous and harmful substances such as formaldehyde, the water quality after processing is had a strong impact on.
The inorganic flocculating agents such as aluminium polychloride are cheap because of its, the extensive use in water process, but during practical application
There is flocculation rate slow, the problems such as limited in one's ability to purification of water quality.Organic high-polymer coagulant aid energy is added in inorganic coagulant
Flocculation sediment speed and purification of water quality ability are significantly improved, He Haihong, which is used, adds poly dimethyl two into General polymeric aluminium chloride
The method of pi-allyl ammonium chloride, is prepared for organic composite polymeric biacid aluminium chloride (patent of invention, application number：
200510030408.4, organic composite polymeric biacid aluminium chloride and its preparation technology), but the process costs are higher, and only
Removal capacity of the water treatment agent to water turbidity is only investigated, the removal capacity of heavy metal and organic matter is still unknown.
The content of the invention
The purpose of the present invention, is to provide a kind of method that utilization cow dung prepares composite water disposal agent.It is of the invention fully harmless
Change using each component in cow dung, with reference to containing aluminium waste or raw material containing aluminium, be prepared for cheap high performance water process and use
Coagulation and Adsorption agent, technique is simple, twice laid, non-secondary pollution, with good economic benefit and environmental benefit.
The technical scheme of use：
A kind of method that utilization cow dung prepares composite water disposal agent, it is characterised in that this method comprises the following steps：
1) cow dung that fresh moisture content is 80-85% is taken, the 10%-20% of cow dung quality weight/mass percentage composition is added
Hydrogen peroxide and 1% nano barium titanate calcium powder body for 30%, then by cow dung quality and acid solution volume ratio be 2Kg:1L adds 3-
4mol/L hydrochloric acid solution, stirs, and heats micro-boiling 10min, and separation of solid and liquid obtains solid A and liquid A；
2) liquid A is mixed with excessive alumina-bearing material powder, stirred, be heated to 80-100 DEG C, reaction to solution
PH value is 2, is filtered to remove solid, obtains transparency liquid B；
3) by solid A in 105 DEG C of drying, carbonization-activation obtains active based composite material of carbon；
4) the active based composite material of carbon for obtaining step 3 is crushed, and is crossed 500 mesh sieves, is all added in liquid B, is stirred
Uniformly, the pH value for mixed liquor being adjusted with sodium hydroxide is 3-4.5, stands aging 24h-32h, obtains liquid composite water disposal agent.
Alumina-bearing material is aluminium ash, aluminium powder, aluminium hydroxide, bauxite, aluminium slag, flyash and aluminium anode in the step 2
One or more in the alkaline residue that oxidation pre-treatment is obtained.
Carbonization-activation method is 85% dense phosphorus of 4 times of quality that solid A is added in solid A in described step three
Acid, is placed in high temperature furnace, under isolation air conditionses, in 400-500 DEG C of carbonization-activation 1h.
The liquid composite water disposal agent that described step four is obtained is concentrated and dried at a temperature of 40-50 DEG C, is obtained solid-state and is answered
Heshui inorganic agent.Advantages of the present invention：Each component in fully innoxious use cow dung of the invention, with reference to containing aluminium waste or containing
Aluminium raw material, are prepared for cheap high performance water process Coagulation and Adsorption agent, and technique is simple, twice laid, non-secondary pollution,
With good economic benefit and environmental benefit.
Brief description of the drawings
Fig. 1 is process chart.
Embodiment
Methods and techniques of the present invention are illustrated below by example.Nano-titanium used in the embodiment of the present invention
Sour calcium powder body is this laboratory by document (east, the preparation of Hou Ping nano barium titanate calcium powder bodies and its absorption to lead in water and cadmium
Behavior [J] chemistry journals, 2009, (12):1336-1342) method is synthesized.
Embodiment 1：The preparation of composite water disposal agent 1
The cow dung 2Kg that fresh adjustment moisture content is 80% is taken, the weight/mass percentage composition for adding 300g is 30% dioxygen
The 3mol/L of water, 20g nano barium titanate calcium powder body and 1L hydrochloric acid solution, is stirred, and heats micro-boiling 10min, and filtering is obtained
Solid A and liquid A；The quality percentage amounts that aluminium is added in liquid A are 25.8% aluminium ash 200g, stir, are heated to 80 DEG C,
Stirring reaction to solution ph is 2, is filtered to remove solid, obtains transparency liquid B；By solid A in 105 DEG C of drying, solid A is added
4 times of quality 85% concentrated phosphoric acid, be placed in high temperature furnace, nitrogen protection under, in 450 DEG C of carbonization-activation 1h, obtain activated carbon
Based composites, are crushed, and are crossed 500 mesh sieves, are all added in liquid B, stir, and the pH of mixed liquor is adjusted with sodium hydroxide
It is worth for 4, stands aging 24h, obtain liquid composite water disposal agent 1.
Embodiment 2:The preparation of composite water disposal agent 2
The cow dung 2Kg that fresh adjustment moisture content is 82% is taken, the weight/mass percentage composition for adding 400g is 30% dioxygen
The 4mol/L of water, 20g nano barium titanate calcium powder body and 1L hydrochloric acid solution, is stirred, and heats micro-boiling 10min, and filtering is obtained
Solid A and liquid A；The bauxite 200g that the weight/mass percentage composition containing alundum (Al2O3) is 57.6%, stirring are added in liquid A
Uniformly, 100 DEG C are heated to, the pH value of stirring reaction to solution is 2, is filtered to remove solid, obtains transparency liquid B；By solid A in
105 DEG C of drying, add 85% concentrated phosphoric acid of solid A 4 times of quality, are placed in high temperature furnace, under nitrogen protection, in 400 DEG C of charcoals
Change activation 1h, obtain active based composite material of carbon, crush, cross 500 mesh sieves, be all added in liquid B, stir, use hydrogen
The pH value of sodium oxide molybdena adjustment mixed liquor is 4.5, stands aging 24h, obtains liquid composite water disposal agent 2.
Embodiment 3：The preparation of composite water disposal agent 3
The cow dung 2Kg that fresh adjustment moisture content is 85% is taken, the weight/mass percentage composition for adding 200g is 30% dioxygen
The 3mol/L of water, 20g nano barium titanate calcium powder body and 1L hydrochloric acid solution, is stirred, and heats micro-boiling 10min, and filtering is obtained
Solid A and liquid A；30g aluminium powders are added in liquid A, are stirred, 90 DEG C are heated to, the pH value of stirring reaction to solution is 2,
Solid is filtered to remove, transparency liquid B is obtained；By solid A in 105 DEG C of drying, 85% dense phosphorus of solid A 4 times of quality is added
Acid, is placed in high temperature furnace, under nitrogen protection, in 500 DEG C of carbonization-activation 1h, obtains active based composite material of carbon, crushes, crosses 500
Mesh sieve, is all added in liquid B, stirs, and the pH value for adjusting mixed liquor with sodium hydroxide is 3.5, stands aging 24h,
40 DEG C of concentrate dryings, obtain solid union water treatment agent 3.
Embodiment 4：The preparation of composite water disposal agent 4
The cow dung 2Kg that fresh adjustment moisture content is 80% is taken, the weight/mass percentage composition for adding 400g is 30% dioxygen
The 4mol/L of water, 20g nano barium titanate calcium powder body and 1L hydrochloric acid solution, is stirred, and heats micro-boiling 10min, and filtering is obtained
Solid A and liquid A；110g aluminium hydroxides are added in liquid A, are stirred, 95 DEG C are heated to, the pH value of reaction to solution is
2, solid impurity is filtered to remove, transparency liquid B is obtained；By solid A in 105 DEG C of drying, the 85% of solid A 4 times of quality is added
Concentrated phosphoric acid, be placed in high temperature furnace, nitrogen protection under, in 450 DEG C of carbonization-activation 1h, obtain active based composite material of carbon, crush,
500 mesh sieves are crossed, are all added in liquid B, are stirred, the pH value for adjusting mixed liquor with sodium hydroxide is 4, stands aging
26h, 45 DEG C of concentrate dryings, obtains solid union water treatment agent 4.
Embodiment 5：The preparation of composite water disposal agent 5
The cow dung 2Kg that fresh adjustment moisture content is 81% is taken, the weight/mass percentage composition for adding 300g is 30% dioxygen
The 3mol/L of water, 20g nano barium titanate calcium powder body and 1L hydrochloric acid solution, is stirred, and heats micro-boiling 10min, and filtering is obtained
Solid A and liquid A；The alkali produced when aluminium weight/mass percentage composition is handled for 10.2% aluminium shape surface alkaline etching is added in liquid A
Slag 300g, stirs, and is heated to 85 DEG C, the pH value of stirring reaction to solution is 2, is filtered to remove solid, obtains transparency liquid
B；By solid A in 105 DEG C of drying, 85% concentrated phosphoric acid of solid A 4 times of quality is added, is placed in high temperature furnace, nitrogen protection
Under, in 450 DEG C of carbonization-activation 1h, active based composite material of carbon is obtained, is crushed, 500 mesh sieves is crossed, is all added in liquid B, stirs
Mix uniform, the pH value for adjusting mixed liquor with sodium hydroxide is 4, stand aging 28h, 40 DEG C of concentrate dryings obtain solid union water
Inorganic agent 5.
Embodiment 6：The preparation of composite water disposal agent 6
The cow dung 2Kg that fresh adjustment moisture content is 80% is taken, the weight/mass percentage composition for adding 400g is 30% dioxygen
The 3mol/L of water, 20g nano barium titanate calcium powder body and 1L hydrochloric acid solution, is stirred, and heats micro-boiling 10min, and filtering is obtained
Solid A and liquid A；The weight/mass percentage composition that alundum (Al2O3) is added in liquid A is respectively 57.6% and 41.8% bauxite
With each 120g of flyash, stir, be heated to 100 DEG C, the pH value of stirring reaction to solution is 2, is filtered to remove solid, obtains
Transparency liquid B；By solid A in 105 DEG C of drying, 85% concentrated phosphoric acid of solid A 4 times of quality is added, is placed in high temperature furnace, nitrogen
Under gas shielded, in 450 DEG C of carbonization-activation 1h, active based composite material of carbon is obtained, is crushed, 500 mesh sieves is crossed, is all added to liquid
In B, stir, the pH value 3.5 of mixed liquor is adjusted with sodium hydroxide, stand aging 32h, 50 DEG C of concentrate dryings obtain solid-state
Composite water disposal agent 6.
Embodiment 7：The performance indications of composite water disposal agent
It is compound with reference to obtained by water treatment agent standard GB/T/T 22627-2014 requirements and method determine embodiment 1-6
Water treatment agent indices, the results are shown in Table 1：
The index of the composite water disposal agent of table 1
Embodiment 8：Purifying property of the composite water disposal agent to waste water
In order to investigate purifying property of the water treatment agent obtained in embodiment 1-6 to waste water, water intaking inorganic agent shakes up, directly
Add, solid is used after being configured to 10% suspension；Mixed aqueous solution is configured to methylene blue and lead, pH value 6-8 is adjusted,
Initial concentration (the C of methylene blue and lead0) it is respectively 6mg/L and 100mg/L, 1L is taken, be separately added into that embodiment 1-6 obtains answers
Heshui inorganic agent 0.02g, stirs, and 30min is stood, respectively with spectrophotometer and Flame Atomic Absorption supernatant
Concentration (the C of methylenum careuleum and leade), calculate clearance by formula (1).Compare simultaneously with commercial goods aluminium polychloride, as a result see
Table 2.
In formula：η is clearance (%)；C0For initial concentration (mg/L)；CeFor equilibrium concentration (mg/L).
Purifying property of the composite water disposal agent of table 2 to waste water
From above example, the composite water disposal agent that this law is prepared using cow dung has very excellent purify water
Ability.
Claims (4)
1. a kind of method that utilization cow dung prepares composite water disposal agent, it is characterised in that this method comprises the following steps：
1）The cow dung that fresh moisture content is 80-85% is taken, the weight/mass percentage composition for adding the 10%-20% of cow dung quality is 30%
Hydrogen peroxide and 1% nano barium titanate calcium powder body, then by cow dung quality and acid solution volume ratio be 2Kg:1L adds 3-4mol/L salt
Acid solution, stirs, and heats micro-boiling 10min, and separation of solid and liquid obtains solid A and liquid A；
2）Liquid A is mixed with excessive alumina-bearing material powder, stirred, 80-100 DEG C, reaction to solution ph is heated to
For 2, solid is filtered to remove, transparency liquid B is obtained；
3）By solid A in 105 DEG C of drying, carbonization-activation obtains active based composite material of carbon；
4）The active based composite material of carbon that step 3 is obtained is crushed, and is crossed 500 mesh sieves, is all added in liquid B, and stirring is equal
Even, the pH value that mixed liquor is adjusted with sodium hydroxide is 3-4.5, stands aging 24h-32h, obtains liquid composite water disposal agent.
2. the method that a kind of utilization cow dung according to claim 1 prepares composite water disposal agent, it is characterised in that the step
Alumina-bearing material is the alkali that aluminium ash, aluminium powder, aluminium hydroxide, bauxite, flyash and anodic oxidation of aluminiun materials pretreatment are obtained in rapid two
One or more in slag.
3. the method that a kind of utilization cow dung according to claim 1 prepares composite water disposal agent, it is characterised in that the step
85% concentrated phosphoric acid of solid A 4 times of quality is added in rapid three in solid A, is placed in high temperature furnace, under isolation air conditionses, in
400-500 DEG C of carbonization-activation 1h.
4. the method that a kind of utilization cow dung according to claim 1 prepares composite water disposal agent, it is characterised in that described
The liquid composite water disposal agent that step 4 is obtained obtains solid union water treatment agent in 40-50 DEG C of concentrate drying.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107572519A (en) * | 2017-08-22 | 2018-01-12 | 青海民族大学 | A kind of method of intensive milk cow factory clean manufacturing |
| CN108947006A (en) * | 2018-07-20 | 2018-12-07 | 江苏力祺环保科技有限公司 | A kind of sewage water treatment method |
| CN112495348A (en) * | 2020-11-11 | 2021-03-16 | 陕西浦士达环保科技有限公司 | Activated carbon capable of removing trichloromethane |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002356319A (en) * | 2001-06-04 | 2002-12-13 | Mori Plant:Kk | Porous and active carbon material and its producing method |
| CN104226250A (en) * | 2014-09-26 | 2014-12-24 | 四川农业大学 | Preparation method of heavy metal copper and cadmium biochar adsorbent and product thereof |
| CN104310547A (en) * | 2014-10-17 | 2015-01-28 | 陕西华陆化工环保有限公司 | Method for preparing flocculating agent by utilizing aluminium smelting ash as raw material |
| CN104724803A (en) * | 2015-03-10 | 2015-06-24 | 重庆大学 | Method for preparing coagulant and application thereof |
| CN104857914A (en) * | 2015-03-26 | 2015-08-26 | 沈阳理工大学 | Method for preparing nanometer titanate adsorbent through modified chicken manure |
| CN104857912A (en) * | 2015-03-26 | 2015-08-26 | 沈阳理工大学 | Method for preparing nanometer titanate adsorbent through acetic acid pre-treatment on cow manure |
| CN105417597A (en) * | 2015-12-12 | 2016-03-23 | 常州大学 | Method for treating coking wastewater |
| CN105597670A (en) * | 2015-10-30 | 2016-05-25 | 王立鑫 | Novel active carbon composite material and preparation method thereof |
-
2017
- 2017-02-28 CN CN201710112198.6A patent/CN107043146B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002356319A (en) * | 2001-06-04 | 2002-12-13 | Mori Plant:Kk | Porous and active carbon material and its producing method |
| CN104226250A (en) * | 2014-09-26 | 2014-12-24 | 四川农业大学 | Preparation method of heavy metal copper and cadmium biochar adsorbent and product thereof |
| CN104310547A (en) * | 2014-10-17 | 2015-01-28 | 陕西华陆化工环保有限公司 | Method for preparing flocculating agent by utilizing aluminium smelting ash as raw material |
| CN104724803A (en) * | 2015-03-10 | 2015-06-24 | 重庆大学 | Method for preparing coagulant and application thereof |
| CN104857914A (en) * | 2015-03-26 | 2015-08-26 | 沈阳理工大学 | Method for preparing nanometer titanate adsorbent through modified chicken manure |
| CN104857912A (en) * | 2015-03-26 | 2015-08-26 | 沈阳理工大学 | Method for preparing nanometer titanate adsorbent through acetic acid pre-treatment on cow manure |
| CN105597670A (en) * | 2015-10-30 | 2016-05-25 | 王立鑫 | Novel active carbon composite material and preparation method thereof |
| CN105417597A (en) * | 2015-12-12 | 2016-03-23 | 常州大学 | Method for treating coking wastewater |
Non-Patent Citations (1)
| Title |
|---|
| 郭宇杰等: "《工业废水处理》", 31 October 2016, 华东理工大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107572519A (en) * | 2017-08-22 | 2018-01-12 | 青海民族大学 | A kind of method of intensive milk cow factory clean manufacturing |
| CN108947006A (en) * | 2018-07-20 | 2018-12-07 | 江苏力祺环保科技有限公司 | A kind of sewage water treatment method |
| CN112495348A (en) * | 2020-11-11 | 2021-03-16 | 陕西浦士达环保科技有限公司 | Activated carbon capable of removing trichloromethane |
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